Added New Relinc integration to Dockerfile in mainline/precise

Author: jsilvaigor

README.md

@@ -1,9 +1,10 @@
 # About this Repo
 
-This is the Git repo of the official Docker image for [nginx](https://registry.hub.docker.com/_/nginx/). See the
+This is the Git fork of the official Docker image for [nginx](https://registry.hub.docker.com/_/nginx/). See the
 Hub page for the full readme on how to use the Docker image and for information
 regarding contributing and issues.
 
 The full readme is generated over in [docker-library/docs](https://github.com/docker-library/docs),
 specificially in [docker-library/docs/nginx](https://github.com/docker-library/docs/tree/master/nginx).
 
+This repo add to mainline/precise the integration with [New Relic](http://newrelic.com/) to measure and monitor the container. It is required that you edit the Dockerfile adding your license key where indicated.

mainline/precise/Dockerfile

@@ -6,14 +6,20 @@ ENV NGINX_VERSION 1.9.11-1~precise
 
 RUN apt-key adv --keyserver hkp://pgp.mit.edu:80 --recv-keys 573BFD6B3D8FBC641079A6ABABF5BD827BD9BF62 \
 	&& echo "deb http://nginx.org/packages/mainline/ubuntu/ precise nginx" >> /etc/apt/sources.list \
+	&& echo 'deb http://apt.newrelic.com/debian/ newrelic non-free' | tee /etc/apt/sources.list.d/newrelic.list \
+	&& wget -O- https://download.newrelic.com/548C16BF.gpg | apt-key add - \
 	&& apt-get update \
-	&& apt-get install -y ca-certificates nginx=${NGINX_VERSION} gettext-base \
+	&& apt-get install -y ca-certificates nginx=${NGINX_VERSION} gettext-base newrelic-sysmond \
 	&& rm -rf /var/lib/apt/lists/*
 
 # forward request and error logs to docker log collector
 RUN ln -sf /dev/stdout /var/log/nginx/access.log \
 	&& ln -sf /dev/stderr /var/log/nginx/error.log
 
+#New Relic Configuration
+RUN nrsysmond-config --set license_key=YOUR_LICENSE_KEY \
+	&& /etc/init.d/newrelic-sysmond start
+
 EXPOSE 80 443
 
 CMD ["nginx", "-g", "daemon off;"]